look up bubble bags their mesh screens 220, 160, 100, 75, 25 etc . and they get sealed and washed in the machine.

you put the material in the highest micron bag and zip it shut. the trichomes and good stuff get filtered into the remaining bags , which are all stacked inside each other in descending order, 220/160/100/75/25. So you get various grades of bubble hash. that's my 2 cents from what iv read 🙏

This is the set I have: https://www.amazon.com/BUBBLEBAGDUDE-Bubble-Bags-Gallon-Bag/dp/B00LLXTOUM/ref=mp_s_a_1_3?dchild=1&keywords=bubble+bag+kit&qid=1606601638&sr=8-3